Asteroids

2026KA3 help

Last update: 2026-05-30 14:45 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.660

Aphelion (Q)

1.274

Eccentricity (e)

0.318

Inclination (i)

3.8

deg

Orbit period (P)

347.3

Earth MOID

0.02113

U parameter

6.5

Next Earth close approach

Date

2042-01-16

Nominal distance (from Earth center)

0.0718

10740849

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-05-26

Observatory

Kitt Peak-Bok

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.967015

1-sigma variation

0.000054

Unit

Eccentricity (e)

Value

0.317889

1-sigma variation

0.000273

Unit

Inclination (i)

Value

3.7905

1-sigma variation

0.0042

Unit

Long. of Ascending Node (Ω)

Value

231.0230

1-sigma variation

0.0029

Unit

Arg. of Perihelion (ω)

Value

135.3550

1-sigma variation

0.0045

Unit

Mean Anomaly (M)

Value

287.18930

1-sigma variation

0.03388

Unit

Perihelion distance

Value

0.659612

1-sigma variation

Unit

Aphelion distance

Value

1.274418

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.113097

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.280961

1-sigma variation

Unit

MOID

Value

0.021126

1-sigma variation

Unit

Orbit Period

Value

347.3346

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.93523E-9	1.47611E-8	2.25416E-7	1.58538E-7	-2.46158E-7	1.83531E-6
e	1.47611E-8	7.42635E-8	1.13419E-6	7.98027E-7	-1.23774E-6	9.23227E-6
i	2.25416E-7	1.13419E-6	1.73247E-5	1.21969E-5	-1.89078E-5	1.40995E-4
Ω	1.58538E-7	7.98027E-7	1.21969E-5	8.60675E-6	-1.33157E-5	9.91909E-5
ω	-2.46158E-7	-1.23774E-6	-1.89078E-5	-1.33157E-5	2.06686E-5	-1.53899E-4
M	1.83531E-6	9.23227E-6	1.40995E-4	9.91909E-5	-1.53899E-4	1.14778E-3

Date of computation: 2026-05-30 14:45 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

25.638

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

20 - 40*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.51871

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-19.405557

Unit

Source

[2]

Last Observation

Value

2026-05-30.216463

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

45 (0)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2026KA3 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1952-05-19 09:44	> 1 w	0.1509047	0.0314668	0.0940666
EARTH	1953-05-25 01:49	> 1 d	0.1629181	0.0188561	0.1076369
EARTH	1967-01-19 05:52	> 1 d	0.0780680	0.0594182	0.0474850
EARTH	1970-05-22 15:30	> 1 w	0.1400777	0.0269053	0.0925301
EARTH	1971-05-25 10:58	> 1 d	0.1710948	0.0200292	0.1171980
VENUS	1976-05-24 15:50	> 1 mo	0.0482441	0.0034377	0.1617162
EARTH	1985-01-18 12:04	> 1 d	0.0731118	0.0591585	0.0323657
EARTH	1988-05-25 03:52	> 1 d	0.1224567	0.1087153	0.0046157
VENUS	1988-09-19 15:55	640.5	0.0091173	0.0085902	0.0016699
EARTH	1989-05-24 18:37	208.4	0.1866589	0.1757291	0.0036445
EARTH	2004-01-18 11:16	726.1	0.1189339	0.0989651	0.0068730
EARTH	2007-05-31 07:58	67.0	0.0329545	0.0217524	0.0049877
EARTH	2022-01-23 15:32	166.8	0.1825327	0.1731432	0.0031416
EARTH	2023-01-23 17:13	691.5	0.1492436	0.1420677	0.0024013
EARTH	2026-05-31 01:30	< 1 min	0.0247147	0.0246469	0.0000226
EARTH	2042-01-16 12:47	78.9	0.0717981	0.0656695	0.0023375
EARTH	2045-05-25 11:01	1147.6	0.1282617	0.1136503	0.0048843
EARTH	2046-05-26 02:05	250.2	0.1642187	0.1479127	0.0054411
EARTH	2061-01-20 13:51	154.3	0.1163195	0.1092579	0.0023785
EARTH	2062-02-07 05:10	1143.0	0.1956478	0.1912306	0.0014750
EARTH	2065-05-30 11:38	66.7	0.0322898	0.0266688	0.0021001
EARTH	2080-01-23 10:49	145.8	0.1563127	0.1473462	0.0030056
EARTH	2081-01-30 00:49	1255.6	0.1699198	0.1620746	0.0026231
EARTH	2084-05-30 12:41	110.9	0.0257872	0.0224892	0.0016127
VENUS	2095-02-18 00:21	> 1 d	0.0403668	0.0171734	0.0077917
EARTH	2099-01-20 12:18	153.2	0.0869080	0.0787799	0.0028567
EARTH	2102-05-16 14:31	265.2	0.1726464	0.1698022	0.0009481
EARTH	2103-05-29 04:19	152.6	0.1236794	0.1170604	0.0022093
VENUS	2117-11-30 14:25	> 1 d	0.0143021	0.0061941	0.0164782
EARTH	2118-01-19 00:17	629.6	0.1072774	0.0712130	0.0136219
EARTH	2121-05-30 23:01	> 1 d	0.1008701	0.0233620	0.0432103
EARTH	2122-05-26 22:18	> 1 d	0.1914898	0.0254324	0.0613251

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
260.58100497	144.14173274	0.02112569	MINIMUM
91.89270883	12.04375882	0.05944364	MINIMUM
176.49574766	78.77876498	0.28228798	SADDLE
354.69577820	256.07454663	0.34594927	SADDLE
355.57924847	77.29834805	1.65618513	SADDLE
177.95708947	259.82381507	2.27646491	MAXIMUM

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MOID Plots

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